Key Concept 6.1 Science and the Environment

Transcription

1 Key Concept 6.1 Science and the Environment Rapid advances in science altered the understanding of the universe and the natural world and led to the development of new technologies. These changes enabled unprecedented population growth, which altered how humans interacted with the environment and threatened delicate ecological balances at local, regional, and global levels. I. Researchers made rapid advances in science that spread throughout the world, assisted by the development of new technology. A. New modes of communication and transportation virtually eliminated the problem of geographic distance. The textbook claims cell phones are the most important development to making this happen do you agree? B. New scientific paradigms transformed human understanding of the world. The theory of relativity The Big Bang Theory Psychology

2 Key Concept 6.1 Examples.notebook April 24, 2014 C. The Green Revolution produced food for the earth s growing population as it spread chemically and genetically enhanced forms of agriculture. What was wrong with this? D. Medical innovations increased the ability of humans to survive. The polio vaccine Antibiotics The artificial heart Life Expectancy in America Women Men Total E. Energy technologies including the use of oil and nuclear power raised productivity and increased the production of material goods. Shows how much each country relies on nuclear power II. As the global population expanded at an unprecedented rate, humans fundamentally changed their relationship with the environment. A. Humans exploited and competed over the earth s finite resources more intensely than ever before in human history. B. Global warming was a major consequence of the release of greenhouse gases and other pollutants into the atmosphere.

3 Key Concept 6.1 Examples.notebook C. Pollution threatened the world s supply of water and clean air. Deforestation and desertification were continuing consequences of the human impact on the environment. Rates of extinction of other species accelerated sharply III. Disease, scientific innovations, and conflict led to demographic shifts. A. Diseases associated with poverty persisted, while other diseases emerged as new epidemics and threats to human survival. In addition, changing lifestyles and increased longevity led to higher incidence of certain diseases. Diseases Associated with Poverty Malaria Tuberculosis Cholera Emergent Epidemic Diseases 1918 Influenza Pandemic Ebola HIV/AIDS Origins of AIDS NPR Diseases Associated with Changing Lifestyles Diabetes Heart Disease Alzheimer's Disease April 24, 2014

4 B. More effective forms of birth control gave women greater control over fertility and transformed sexual practices. Data from the CDC Other reasons why women might want to be able to control when they have a baby? Modern Pill developed in 1960: What did they do before that? Condoms have been sold in the US since 1840 First used to prevent spread of VD As late as the 20th Century, Jewish women of the Manhattan Lower East Side attempted to abort by sitting over a pot of steam (or hot stewed onions), a technique described in an 8th Century Sanskrit source. Now: Lots of options (Ask your parents or Mr. Beiwer) Roe v. Wade Restricted state's ability to regulate abortion How do you think this transformed sexual practices? C. Improved military technology and new tactics led to increased levels of wartime casualties. Improved Military Technology Tanks Airplanes The atomic bomb New Tactics Trench Warfare Firebombing Wartime Casualties Nanjing Dresden Hiroshima

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